Baspon - CTF 81

IHC Blog

CTF Name: Baspon

Topic: Cryptography

Flag Format: ICTF{}

CTF Link: https://t.me/ctf_invisiblehc/133

Description:

Binary has 0 and 1. But there are many cipher where you found 0 and 1.

Solution :

We firstly identified the cipher using this website: https://www.dcode.fr/cipher-identifier

The results indicated that it might be a Base37 cipher. We then attempted to decrypt it using Base37 Decoder and successfully decrypted it. Then we obtained another encrypted text, which appeared to consist of only 0 and 1.

However, it was not binary. Upon reidentifying it, the results suggested that it could be a Spoon cipher. After trying to decrypt it using a Spoon cipher decoder, we successfully found the flag.

Flag: ICTF{5P00N_15_4M4Z1NG}

Join Our CTF Channel:

https://t.me/ctf_invisiblehc